21161005467367 has 2 divisors, whose sum is σ = 21161005467368. Its totient is φ = 21161005467366.

The previous prime is 21161005467337. The next prime is 21161005467373. The reversal of 21161005467367 is 76376450016112.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-21161005467367 is a prime.

It is a super-2 number, since 2×21161005467367² (a number of 27 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 21161005467367.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (21161005467337) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10580502733683 + 10580502733684.

It is an arithmetic number, because the mean of its divisors is an integer number (10580502733684).

Almost surely, 2^{21161005467367} is an apocalyptic number.

21161005467367 is a deficient number, since it is larger than the sum of its proper divisors (1).

21161005467367 is an equidigital number, since it uses as much as digits as its factorization.

21161005467367 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1270080, while the sum is 49.

The spelling of 21161005467367 in words is "twenty-one trillion, one hundred sixty-one billion, five million, four hundred sixty-seven thousand, three hundred sixty-seven".